package com.webmanage.common;

import lombok.Data;
import java.util.List;

/**
 * 分页结果
 * 
 * @author webmanage
 * @date 2024-08-07
 */
@Data
public class PageResult<T> {
    
    /**
     * 数据列表
     */
    private List<T> list;
    
    /**
     * 总记录数
     */
    private Long total;
    
    /**
     * 当前页码
     */
    private Long pageNum;
    
    /**
     * 每页大小
     */
    private Long pageSize;
    
    /**
     * 总页数
     */
    private Long pages;
    
    public PageResult() {}
    
    public PageResult(List<T> list, Long total, Long pageNum, Long pageSize) {
        this.list = list;
        this.total = total;
        this.pageNum = pageNum;
        this.pageSize = pageSize;
        this.pages = (total + pageSize - 1) / pageSize;
    }
    
    public PageResult(List<T> list, Long total, Long pageNum, Long pageSize, Long pages) {
        this.list = list;
        this.total = total;
        this.pageNum = pageNum;
        this.pageSize = pageSize;
        this.pages = pages;
    }
    
    /**
     * 创建分页结果
     */
    public static <T> PageResult<T> of(List<T> list, Long total, Long pageNum, Long pageSize) {
        return new PageResult<>(list, total, pageNum, pageSize);
    }
}